*{
    margin: 0px;
    padding: 0px;
}
header{
    height: 100px;
    border-bottom: 1px solid #ccc;
    padding-top: 30px;
    box-sizing: border-box;
    margin-bottom: 20px;
}
li{
    list-style: none;
    float: left;
    margin-right: 10px;
    border-right: 1px solid #ccc;
    font-size: 13px;
    margin:0px;
}
li a{
    color: black;
}
li a:hover{
    text-decoration: none;
    color: red;
}
nav>ul>li{
    margin: 0px;
}
nav{
    margin-top: 20px;
    box-sizing: border-box;
}
h1{
    width: 110px;
    font-size: 20px;
}
.member_item{
    position: relative;
    top: 0px;
    left: 0px;
    z-index: 1;
    height: 200px;
    box-shadow: #ccc 2px 3px 10px 1px;
    margin-right: 50px;
    margin-bottom: 50px;
  }
.member_item::after{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: url("../image/activity_bg.jpg") no-repeat;
    background-size: cover;
    filter: blur(10px);
    z-index: -1;
  }
  .join_button{
    height: 50px;
    background-color: blue;
    color: white;
    text-align: center;
    width: 100px;
    line-height: 50px;
    border: 2px solid black;
    float: right;
    margin-right: 20px;
    margin-top: 20px;
  }
  .join_button:hover{
    cursor: pointer;
    background: orange;
  }
/* 
  会员优享
*/
  .member_integral{
    height: 880px;
}
.member_show_item{
    margin-right: 50px;
    height: 200px;
    margin-bottom: 120px;
}
.member_button{
    height: 30px;
    background-color: blue;
    color: white;
    text-align: center;
    width: 100px;
    line-height: 30px;
    border: 2px solid black;
    float: right;
    margin-top: 30px;
    margin-right: -65px;
}
.member_button:hover{
    cursor: pointer;
    background: green;
}
.member_integral img{
    width: 100%;
    height: 100%;

}

.member_more{
    height: 50px;
    background-color: gray;
    color: white;
    text-align: center;
    width: 200px;
    line-height: 50px;
    border: 2px solid black;
    float: right;
    margin-top: 70px;
    margin-right: -65px;
  }
.member_more:hover{
    cursor: pointer;
    background:#F60;
  }

  @media screen and (max-width:480px) and (min-width: 100px){
    .logo img{
      display: none;
    }
    header h1{
      font-size: 16px;
      margin-left: -20px;
    }
    .member_level{
      height: auto;
    }
    .member_item{
      height: 300px;
    }
    .member_item:nth-of-type(1){
      height: 200px;
    }
    .member_item:nth-of-type(2){
      height: 250px;
    }
  }

  @media screen and (max-width:768px) and (min-width: 481px){
    .logo img{
      display: none;
    }
    header h1{
      font-size: 16px;
      margin-left: -20px;
      margin-right: 50px;
      width: 100px;
    }
    .member_level{
      height: auto;
    }
    .member_item{
      height: 300px;
    }
    .member_item:nth-of-type(1){
      height: 200px;
    }
    .member_item:nth-of-type(2){
      height: 250px;
    }
    .logo_xs_view{
      width: 41.66666667%;
    }
    .navs{
      width: 58.33333333%;
    }

  }
  
  @media screen and (max-width:993px) and (min-width: 769px){
    .logo img{
      display: none;
    }
     h1{
      font-size: 16px;
      margin-left: -20px;
      margin-right: 50px;
      width: 100px;
    }
    .member_level{
      height: auto;
    }
    .member_item{
      height: 300px;
    }
    .member_item:nth-of-type(1){
      height: 200px;
    }
    .member_item:nth-of-type(2){
      height: 250px;
    }
    .logo_xs_view{
      width: 41.66666667%;
    }
    .navs{
      width: 58.33333333%;
    }
  }